268 REMARKS ON DOORNIA AND RYKIA. 



Oy. 



while it corresponds neither with the P. odoratisdmuH of the Mora of 

 Coromandel, nor with the former genus, Doornia. 



I dedicate the new genus to the highly honoured member of our 

 Academy, whose sudden death we lament^ whose former assistance we 

 have been privileged to experience, but whose place we now see empty. 

 His zeal and knowledge, both in this new Institution and in the First 

 Class of the earlier Iloyal Institution of the Netherlands, we had good 

 cause to know; and LI. Eyk, a short time ago, gave a proof of them 

 in the honourable work undertaken at the request of the Academy (in 

 conjunction with our fellow-members Messieurs G. I. Mulder and A, H. 

 Van Boon Mesch) to enlighten Government on the causes of the spon- 



+ 



taneous combustion of goods loaded in ships, 



I call this new genus Rykia^ to associate also witli science the name 

 of the Vice- Admiral J. C. Ryk, by whose death the country is deeply 

 affected, and in whom we all lament a zealous fellow-labourer, a man 



r r 



of diversified knowledge, and a warm supporter of our King and coun- 

 try. Among the names of distinguished naval officers already asso- 

 ciated with botanical science, as Bumontia, Burvillea, Freycinetia, the 

 genus RyUa will find a place in the Botanical System. I give the fol- 

 lowing diagnosis of this genus : 



~ r 



^YKiA (Pandanus, etc., Auctt.), 

 Flo7'€s dioici. 



Masc. Spadix compositus, dependens, bracteatus. 



Stamina fascicularia, in stipite communi compresso, 9-11-13, fere bise- 

 rialia. 



Antherce erectse, lineares, ultra connectivi loculos productse, acuminatse, 

 dorso adnatse ; loculi autherarum paralleli ; pollen globosiun. 



Toem, Spadix simplex, ovatus, erectus, stipitatus. 



Ovaria simplicia, unilocularia. 



Oculum unicum, e placentae basi parietali adscendens* 



Bnipa angulata, fibrosa, elongata, in medio continens putaraen ligneum, 

 uniloculare, sursura in processum polyhedrum terminatum, et 

 apice bicornuto, cornubus mucronatis instructum. 



Semen imicum ; sed hujus tantum rudimenta vidi, 



w 



Rykiafurcata (P, furcatus, ^a:5.).— Char, speciei hue referendge, ab 

 auctoribus sunt expositi; ad hos igitur hie loci liceat referre. 



